Cover for preserve-jars.



No. 627,755. Patented lune 27, I899.

A. LEG-RAND. COVER FOR PRESERVE JARS.

(Application filed Aug. 9, 1898.)

(No Model.) I

By Attorney Witnesses 4 UNITED STATES PATENT rrrcn.

ALBERT LEGRAND, OF MANCHESTER, NEW HAMPSHIRE.

COVER FOR PRESERVE-JARS.

SPECIFICATION forming part of Letters Patent No. 627,755, dated June27,1899.

' Application filed August 9, 1898.

To all whom it may concern): 1

Be it known that I, ALBERT LEGRAN'D, a citizen of the United States,residing at Manchester, in the county of I-Iillsborough and State of NewHampshire, have invented a certain new and useful Improved Cover forPreserve-Jars; and I do hereby declare the following to be a full,clear, and exact description of theinvention, such as will enable othersskilled in the art to which it appertainsto make and use the same.

This invention relates, essentially, to the covers of preserve-jarssealed by vacuum and it is particularly adapted for application to apreserve-jar such as is shown in my United States patent of July 5,1898, numbered 606,822. The coverin both instances closes upon the jarautomatically Without the aid of screw-threads, clamps, or tools of anydescription; but by the following it will'be 0bvious that each havecharacteristic and distinctive features, the present inventionpossessing advantages over the former patent, which was provided with abar or handle across the top of the cover to facilitate its removal anda form of air-vent difficult to construct when formed upon a cover madeof the material which I prefer. Theobjects aimed at, however, in bothinventions are identicalviz., the production of a jar and cover for samecapable of sealing automatically.

The present invention consists in the peculiar construction of the coverand its air-vent, as particularly pointed out in thefollowingspecification and claim, and clearlyillustrated in the drawingsaccompanying and forming a part of the same, of which Figure 1 is avertical section of the upper portion of a preserve-jar having myimproved cover applied thereto. Fig. 2 is a broken elevation showing aportion of two jars as adapted for storing away one upon the other,-Fig.3 being a section of a portion of a cover with my improved air-ventvalve on an enlarged scale, the cover being represented thick, as whenmade of glass. I

It is desirable that all parts of a preservejar and its cover should beproof against any corrosive action of the contents. For this reason thecovers which have been in most demand of late years are made ofglass,which,

Serial No. 688,162 (No model.)

however, are much more expensive than when made of metal. y

I can form my improved cover either of glass or metal; but I prefer thelatter material for the reason that owing to my improved construction Iam enabled to use aluminium, and thus avoid the disadvantages of theother metals, such as tin or zinc.

The manufacturers of other vacuum jarv covers can ill afford to usealuminium, as their covers must be punctured in order to remove themfrom a jar, thus ruining the covers for future use, while the air-ventprovided in my improved covers renders them capable of use over and overagain.

Referring to the drawings, A represents a preserve-jar, and B is itsflaring mouth.

0 is a cover for the jar having. an annular upturned'tapering flange 0,whose angle is made to correspond with that of the mouth B of said jar.The flange c terminates in a roll 0, which is corrugated or providedwith radial grooves 0 across its face, and said flange is providedwithan annular groove 0 into which is fitted a flexible or pliable rubberband D for sealing the cover 0 within the mouth of the jar. An auxiliaryband D, may also be placed within the recess of the under side of theroll 0 'of the flange 0, as shown in Fig. 3.

My improved valve for the air-vent c of the cover 0 comprises a threadedstud E, having at one end a fiat head or disk (2 and a thumbnut F,threaded to said stud E and adapted to draw the disk 6 tightly againstthe under side of the cover 0, a gasket G being placed "to said cover,which cannot be done if aluminium is used for making the cover. I-Iencemy improved construction of valve is necessary and is even preferablewhen the covers are formed of glass. The handle on the cover in theabove patent required to be soldered in order to be attached in a neatmanner, and as it could not be so attached to an aluminium cover, andfor the additional reason that such a bar or handle across the topprevented setting one jar upon the cover of another when storing away, Isubstituted the roll with its corrugations or grooves on the upper edgeof the flange of cover, by means of which the cover may be easilyrotated under the pres sure of the hand when it is desired to open ajar, and for the purpose of storing the jars may be safely placed asshown in Fig. 2.

The action of my improved cover is entirely automatic, as it has simplyto be placed within the mouth of its jar containing hot preserves, andin a fewflmoments it will have sealed itself, and by pressing the covertightly into the mouth of a jar containing cold or uncooked fruit thesame can thus be sealed.

Having described my improvements, what I claim is The combination with abottle having a flaring mouth of larger diameter at its base than thediameter of the neck, of a cover comprising an axially-apertured disk,an annular flange conforming to the flared mouth and having an annularsemicylindrical depression and a corrugated rolled edge fitting over theedge of the mouth, rubber bands Within the roll and depressionrespectively, a threaded stud extending through the aperture andprovided with a fixed disk at its lower end, a gasketintermediate of thedisk andcover and a thumb-nut screwed upon the stud and bearing directlyupon the cover, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT LEGRAND.

\Vitnesses:

J. B. TI-IURSTON, A. E. BOISVERT.

